Stabilization systems for fiber finishes

Abstract

Fiber finish compositions comprising a major amount of a polyoxyalkylene glycol or fatty acid ester lubricant and a minor amount of an oxidative and thermal stabilizer system therefor comprising a blend of a substituted 1,3,5-triazine and a multi-functional hindered phenolic compound, a process for the application thereof and the coated fibers resulting therefrom.

What is claimed is: 
     
       1. A fiber treating composition comprising (A) a lubricant selected from the group consisting of polyoxyalkylene ether polyols, alkoxylates of fatty acids, and alkoxylates of fatty acids blended with unsaturated vegetable oils; and   (B) an effective stabilizing amount of a mixture of 2,4-bis(n-octylthio)-6-(4-hydroxy-3,5-di-tert.butylanilino)-1,3,5-triazine and a multi-functional hindered phenol corresponding to the formulae: ##STR8## wherein R and R 1  independently are C 1  -C 6  alkyl, x is 0 to 6, y and z independently are 2 to 20 and R 2  is hydrogen hydroxy or ##STR9## wherein n is the number of repeating units ##STR10## said triazine and said phenol being present in said mixture in a weight ratio of from 1:1 to 1:9.   
     
     
       2. The composition of claim 1, wherein said hindered phenol corresponds to formula I. 
     
     
       3. The composition of claim 1, wherein said hindered phenol corresponds to formula II. 
     
     
       4. The composition of claim 1, wherein said hindered phenol corresponds to formula III. 
     
     
       5. The composition of claim 1, wherein said hindered phenol corresponds to formula IV. 
     
     
       6. The composition of claim 2, wherein said phenol is thio-bis[ethylene-3-(3,5-di-tert.butyl-4-hydroxyphenyl)-propionate]. 
     
     
       7. The composition of claim 1, wherein said lubricant is a polyoxyalkylene glycol derived from propylene oxide or ethylene oxide or copolymers thereof. 
     
     
       8. The composition of claim 1, wherein said lubricant in an alkoxylate of a C 12  -C 22  fatty acid. 
     
     
       9. The composition of claim 8, wherein said alkoxylate is blended with an unsaturated vegetable oil. 
     
     
       10. The composition of claims 1 or 6, wherein said weight ratio is 1:5 to 1:7. 
     
     
       11. The composition of claim 1, wherein said mixture (B) is added to lubricant (A) in a concentration of from about 0.1 to 5.0%, by weight. 
     
     
       12. The composition of claim 11, wherein said concentration is 2%, by weight. 
     
     
       13. Natural or synthetic fibers having deposited thereon the composition of claims 1 or 6. 
     
     
       14. A process for lubricating and protecting natural or synthetic fibers comprising applying to said fibers an effective amount of the composition of claims 1 or 6.